Rapid mobilization of membrane lipids in wheat leaf sheaths during incompatible interactions with Hessian fly

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dc.contributor.author Zhu, Lieceng
dc.contributor.author Liu, Xuming
dc.contributor.author Wang, Haiyan
dc.contributor.author Khajuria, Chitvan
dc.contributor.author Reese, John C.
dc.contributor.author Whitworth, R. Jeffery
dc.contributor.author Welti, Ruth
dc.contributor.author Chen, Ming-Shun
dc.date.accessioned 2012-08-01T20:17:06Z
dc.date.available 2012-08-01T20:17:06Z
dc.date.issued 2012-08-01
dc.identifier.uri http://hdl.handle.net/2097/14118
dc.description.abstract Hessian fly (HF) is a biotrophic insect that interacts with wheat on a gene-for-gene basis. We profiled changes in membrane lipids in two isogenic wheat lines: a susceptible line and its backcrossed offspring containing the resistance gene H13. Our results revealed a 32 to 45% reduction in total concentrations of 129 lipid species in resistant plants during incompatible interactions within 24 h after HF attack. A smaller and delayed response was observed in susceptible plants during compatible interactions. Microarray and real-time polymerase chain reaction analyses of 168 lipid-metabolism-related transcripts revealed that the abundance of many of these transcripts increased rapidly in resistant plants after HF attack but did not change in susceptible plants. In association with the rapid mobilization of membrane lipids, the concentrations of some fatty acids and 12-oxo-phytodienoic acid (OPDA) increased specifically in resistant plants. Exogenous application of OPDA increased mortality of HF larvae significantly. Collectively, our data, along with previously published results, indicate that the lipids were mobilized through lipolysis, producing free fatty acids, which were likely further converted into oxylipins and other defense molecules. Our results suggest that rapid mobilization of membrane lipids constitutes an important step for wheat to defend against HF attack. en_US
dc.relation.uri http://apsjournals.apsnet.org/doi/abs/10.1094/MPMI-01-12-0022-R en_US
dc.subject Hessian fly en_US
dc.subject Wheat en_US
dc.subject Rapid mobilization of membrane lipids en_US
dc.title Rapid mobilization of membrane lipids in wheat leaf sheaths during incompatible interactions with Hessian fly en_US
dc.type Article (publisher version) en_US
dc.date.published 2012 en_US
dc.citation.doi doi:10.1094/MPMI -01-12-0022-R en_US
dc.citation.epage 930 en_US
dc.citation.issue 7 en_US
dc.citation.jtitle Molecular Plant-Microbe Interactions en_US
dc.citation.spage 920 en_US
dc.citation.volume 25 en_US
dc.contributor.authoreid xmliu en_US
dc.contributor.authoreid hwang en_US
dc.contributor.authoreid jreese en_US
dc.contributor.authoreid jwhitwor en_US
dc.contributor.authoreid welti en_US
dc.contributor.authoreid mchen en_US

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